static __inline__ void ahi_handler (int nr)
{
struct audio_channel_data *cdp = audio_channel + nr;
switch (audio_channel_state[nr]) {
case 0:
write_log ("Bug in sound code\n");
break;
case 1:
audio_channel_evtime[nr] = cdp->per;
cdp->intreq2 = 0;
audio_channel_state[nr] = 2;
if (cdp->wlen != 1)
cdp->wlen = (cdp->wlen - 1) & 0xFFFF;
cdp->dat = CHIPMEM_WGET (cdp->pt);
cdp->pt += 2;
break;
case 2:
if (nr == 4 && cdp->intreq2)
INTREQ (0x8080);
cdp->intreq2 = 0;
audio_channel_evtime[nr] = cdp->per;
cdp->dat = CHIPMEM_WGET (cdp->pt);
cdp->pt += 2;
if (cdp->wlen == 1) {
cdp->pt = cdp->lc;
cdp->wlen = cdp->len;
cdp->intreq2 = 1;
} else
cdp->wlen = (cdp->wlen - 1) & 0xFFFF;
break;
default:
audio_channel_state[nr] = 0;
break;
}
}
void AUDxDAT (int nr, uae_u16 v)
{
struct audio_channel_data *cdp = audio_channel + nr;
TEXT_SCOPE(cycles, nr, PET_DAT, v);
update_audio ();
cdp->dat = v;
cdp->datpt = 0;
if (cdp->state == 0 && !(INTREQR() & (0x80 << nr))) {
cdp->state = 2;
INTREQ(0x8000 | (0x80 << nr));
/* data_written = 2 ???? */
cdp->evtime = cdp->per;
}
}
static void audio_handler (int nr)
{
struct audio_channel_data *cdp = audio_channel + nr;
switch (cdp->state) {
case 0:
fprintf(stderr, "Bug in sound code\n");
break;
case 1:
/* We come here at the first hsync after DMA was turned on. */
cdp->evtime = maxhpos;
cdp->state = 5;
INTREQ(0x8000 | (0x80 << nr));
if (cdp->wlen != 1)
cdp->wlen = (cdp->wlen - 1) & 0xFFFF;
cdp->nextdat = chipmem_bank.wget(cdp->pt);
cdp->nextdatpt = cdp->pt;
cdp->nextdatptend = cdp->ptend;
/* BUG in UAE. Only hsync handler should increase DMA pointer
cdp->pt += 2;
*/
break;
case 5:
/* We come here at the second hsync after DMA was turned on. */
cdp->evtime = cdp->per;
cdp->dat = cdp->nextdat;
cdp->datpt = cdp->nextdatpt;
cdp->datptend = cdp->nextdatptend;
cdp->current_sample = (uae_s8)(cdp->dat >> 8);
cdp->state = 2;
{
int audav = adkcon & (1 << nr);
int audap = adkcon & (16 << nr);
int napnav = (!audav && !audap) || audav;
if (napnav)
cdp->data_written = 2;
}
break;
case 2:
/* We come here when a 2->3 transition occurs */
cdp->current_sample = (uae_s8)(cdp->dat & 0xFF);
cdp->evtime = cdp->per;
cdp->state = 3;
/* Period attachment? */
if (adkcon & (0x10 << nr)) {
if (cdp->intreq2 && cdp->dmaen) {
INTREQ(0x8000 | (0x80 << nr));
}
cdp->intreq2 = 0;
cdp->dat = cdp->nextdat;
cdp->datpt = cdp->nextdatpt;
cdp->datptend = cdp->nextdatptend;
if (cdp->dmaen)
cdp->data_written = 2;
if (nr < 3) {
if (cdp->dat == 0)
(cdp+1)->per = 65535;
else
(cdp+1)->per = cdp->dat;
}
}
break;
case 3:
/* We come here when a 3->2 transition occurs */
cdp->evtime = cdp->per;
if ((INTREQR() & (0x80 << nr)) && !cdp->dmaen) {
cdp->state = 0;
cdp->current_sample = 0;
break;
} else {
int audav = adkcon & (1 << nr);
int audap = adkcon & (16 << nr);
int napnav = (!audav && !audap) || audav;
cdp->state = 2;
if ((cdp->intreq2 && cdp->dmaen && napnav)
|| (napnav && !cdp->dmaen)) {
INTREQ(0x8000 | (0x80 << nr));
}
cdp->intreq2 = 0;
cdp->dat = cdp->nextdat;
cdp->datpt = cdp->nextdatpt;
cdp->datptend = cdp->nextdatptend;
cdp->current_sample = (uae_s8)(cdp->dat >> 8);
if (cdp->dmaen && napnav)
cdp->data_written = 2;
/* Volume attachment? */
if (audav) {
if (nr < 3) {
(cdp+1)->vol = cdp->dat;
}
}
}
break;
default:
cdp->state = 0;
break;
}
}
static __inline__ void audio_handler (int nr)
{
struct audio_channel_data *cdp = audio_channel + nr;
// int evtime = audio_channel_evtime[nr];
audio_channel_evtime[nr] = MAX_EV;
switch (audio_channel_state[nr]) {
case 0:
//write_log ("Bug in sound code\n");
break;
case 1:
audio_channel_evtime[nr] = maxhpos * CYCLE_UNIT;
audio_channel_state[nr] = 5;
INTREQ(0x8000 | (0x80 << nr));
if (cdp->wlen != 1)
cdp->wlen = (cdp->wlen - 1) & 0xFFFF;
cdp->nextdat = CHIPMEM_WGET (cdp->pt);
//cdp->pt += 2;
break;
case 5:
audio_channel_evtime[nr] = cdp->per;
cdp->dat = cdp->nextdat;
cdp->last_sample = audio_channel_current_sample[nr];
audio_channel_current_sample[nr] = (sample8_t)(cdp->dat >> 8);
audio_channel_state[nr] = 2;
{
int audav = adkcon & (1 << nr);
int audap = adkcon & (16 << nr);
int napnav = (!audav && !audap) || audav;
if (napnav)
cdp->data_written = 2;
}
break;
case 2:
cdp->last_sample = audio_channel_current_sample[nr];
audio_channel_current_sample[nr] = (sample8_t)(cdp->dat & 0xFF);
audio_channel_evtime[nr] = cdp->per;
audio_channel_state[nr] = 3;
if (adkcon & (0x10 << nr)) {
if (cdp->intreq2 && cdp->dmaen)
INTREQ (0x8000 | (0x80 << nr));
cdp->intreq2 = 0;
cdp->dat = cdp->nextdat;
if (cdp->dmaen)
cdp->data_written = 2;
if (nr < 3) {
if (cdp->dat == 0)
(cdp+1)->per = PERIOD_MAX;
else if (cdp->dat < maxhpos * CYCLE_UNIT / 2)
(cdp+1)->per = maxhpos * CYCLE_UNIT / 2;
else
(cdp+1)->per = cdp->dat * CYCLE_UNIT;
}
}
break;
case 3:
audio_channel_evtime[nr] = cdp->per;
if ((INTREQR() & (0x80 << nr)) && !cdp->dmaen) {
audio_channel_state[nr] = 0;
cdp->last_sample = 0;
audio_channel_current_sample[nr] = 0;
break;
} else {
int audav = adkcon & (1 << nr);
int audap = adkcon & (16 << nr);
int napnav = (!audav && !audap) || audav;
audio_channel_state[nr] = 2;
if ((cdp->intreq2 && cdp->dmaen && napnav)
|| (napnav && !cdp->dmaen))
INTREQ(0x8000 | (0x80 << nr));
cdp->intreq2 = 0;
cdp->dat = cdp->nextdat;
cdp->last_sample = audio_channel_current_sample[nr];
audio_channel_current_sample[nr] = (sample8_t)(cdp->dat >> 8);
if (cdp->dmaen && napnav)
cdp->data_written = 2;
if (audav) {
if (nr < 3) {
audio_channel_vol[nr+1] = cdp->dat;
}
}
}
break;
default:
audio_channel_state[nr] = 0;
break;
}
}
